3 years ago

New help math please I am stuck

Mathematics

1 answer:

Tcecarenko [31]3 years ago

4 0

Answer: Can u post a question?

Step-by-step explanation:

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What’s the awnser? ILL GIVE BRAINLIST

Lubov Fominskaja [6]

The answer is (4,-7)

5 0

3 years ago

Answer with explanation.please.

Free_Kalibri [48]

The radius of the base is 10 cm.

Solution:

Height of a cone = 15 cm

Volume of the cone = 1570 cm³

To find the radius of the base of the cone:

Volume of the cone = $\frac{1}{3}\pi r^2 h$

$$\Rightarrow \frac{1}{3}\pi r^2 h=1570$

$$\Rightarrow \frac{1}{3}\times\ 3.14\times r^2 \times 15=1570$

$$\Rightarrow\ 3.14\times r^2 \times 5=1570$

$$\Rightarrow\ 15.7\times r^2 =1570$

Divide by 15.7 on both side of the equation, we get

$$\Rightarrow r^2 =100$

Taking square root on both sides of the equation, we get

⇒ r = 10

Hence the radius of the base is 10 cm.

5 0

4 years ago

I thought of a number. My number doubled is 20 bigger than 200. Find my number.

Illusion [34]

Answer:

110

Step-by-step explanation:

200+20=220

220/2=110

5 0

3 years ago

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Solve for the indicated variable.<br> 3a + 6b = 4 for b

Lapatulllka [165]

Answer:

Thsi is for a a=−2b+ 4/3. This is for b b= -1/2 a + 2/3

Step-by-step explanation: I believe hope this helps :)

7 0

3 years ago

The amount of time t it takes for a group of volunteers to clean up a park varies inversely with the number of volunteers v. If

Kobotan [32]

Answer:

t = $\frac{10.5}{v}$

Step-by-step explanation:

since t varies inversely with v then the equation relating them is

t = $\frac{k}{v}$ ← k is the constant of variation

to find k use the given condition n = 7, t = 1.5 then

k = vt = 7 × 1.5 = 10.5

t = $\frac{10.5}{v}$ ← is the equation

3 0

3 years ago

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